When President Hugh B Brown spoke to the missionaries in the New England Mission, he told how Pres. David O. McKay was touched when he thought of the missionaries preparing the way for the Second Coming:
I met with President McKay, Friday of this week, in his room. And he asked me if I would extend to you his love and blessing and his gratitude. And his voice broke as he said, “Brother Brown, when I think there are 12,000 young men out teaching what you and I taught a half-century ago, and when I think of the accomplishments of these young people, I cannot but believe that God is shortening his work and that the final days are upon us. And that some young people, now living, will be instruments in [the] great work to be done in anticipation of and participation in those final wind-up scenes.” (italic added)
I think you men and women are chosen, not only that, I think you were held back from coming into the world until the time when your particular type of young people would be needed.
I call upon you young men and women to resolve irrevocably today that you will continue true to the truth while you live on the earth. First, because you were called and sent here from the other side. Second, because inspiration is coming into your lives as you go about teaching the gospel of Jesus Christ. (New England Prophet [New England States Mission Publication, Jan 1964])